Summary of the invention
Technical problem to be solved by this invention is to overcome the defective that above-mentioned prior art exists, and the push-button switch that a kind of serviceability is stable, security performance is good, feel is good and manufacturing cost is lower is provided.
For achieving the above object, the present invention is by the following technical solutions: a kind of push-button switch, comprise base and cover loam cake on the end face thereon, it is characterized in that being equipped with between base and the loam cake at least one group of button, every group of button comprises at least two oscillating rod type buttons that are connected in the base, on cover the button location hole that has with number of buttons coupling, be provided with the slide block of linkage interlocked effect between the adjacent buttons in every group of button;
Have at least the below of a button to be provided with in every group of button and be fixed on big pin on the base with the shell fragment of its interlock, the inner of shell fragment is inner affixed with big pin, be connected with a leaf spring between the outer end of the outer end of shell fragment and big pin, be positioned on the base under the shell fragment outer end and be inserted with little pin, all riveting on the outer end of shell fragment and the little pin has silver contact, and the heel riveting of large and small pin has the bonding wire copper sheet.
During work, press the oscillating rod type button that is provided with little pin under it downwards, button moves downward shell fragment, leaf spring and shell fragment interlock, and leaf spring rotates around its tie point with big pin, when the tie point of leaf spring and shell fragment falls to the tie point horizontal level that is lower than leaf spring and big pin, leaf spring produces downforce to shell fragment, and shell fragment descends automatically, collides until silver contact that is fixed on the shell fragment front end and the silver contact that is fixed on the little pin, circuit turn-on, downforce maximum at this moment; By pushing other button in same group, slide block is moved, thereby the button after the work is moved upward, leaf spring upwards rotates around its tie point with big pin, and until resetting, this moment, two silver contacts disconnected, the not conducting of circuit at aforementioned button place.
As the further of technique scheme improved and replenish, the present invention takes following technical measures:
Above-mentioned push-button switch, forward and backward two groups of buttons are housed between base and the loam cake, and last group of button is made up of three buttons that are axially-aligned, is provided with two slide blocks between the three, the one group of button in back is made up of two buttons that are axially-aligned, is provided with a slide block between the two; The below of three buttons in the middle of being positioned at all is provided with shell fragment, leaf spring, big pin and little pin, and the below of first button is provided with a stop key spring that is used with slide block, and the below of last button is provided with shell fragment, leaf spring and big pin.Press second or three button, the circuit turn-on at this button place; Press other button of last group of push-button switch, the not conducting of circuit at aforementioned button place.Press the 4th button, the circuit turn-on at this button place; Press the 5th button, the not conducting of circuit at aforementioned button place.
Above-mentioned push-button switch, base covers on its bottom surface by buckle and and is connected with back cover on the sidewall all around, loam cake is coated with a pellosil, and between the periphery that bound edge is embedded in loam cake around this pellosil and the periphery of back cover, the lateral wall of pellosil and the lateral wall of back cover are fair.The periphery of switch is connected encirclement by back cover with pellosil, dirts such as water smoke, dust, greasy dirt can not dropped on each silver contact, shell fragment, leaf spring, the pin, makes the present invention have good seal performance, long service life, the characteristics of waterproof and dustproof, preventing oil pollution.
Above-mentioned push-button switch, the limit, a base angle of back cover is provided with wire hole, and the line sheath is equipped with at the wire hole place, makes dirts such as water smoke, dust, greasy dirt can not enter from here, is installed with lead in this line sheath, and the inner of lead is connected with the bonding wire copper sheet.
Above-mentioned push-button switch, the U-lag that the turning arm that oscillating rod type button one end forms places the base madial wall to form makes things convenient for turning arm to rotate.
Above-mentioned push-button switch, shell fragment, big pin, little pin are all L-shaped, make things convenient for the mutual connection of parts.
Above-mentioned push-button switch forms a pressing down section and a manual press section that is used with slide block on the button, described pressing down section is positioned at the opposite of turning arm, and the both sides of slide block respectively form an inclined-plane that is used with pressing down section.
Compared with prior art, the beneficial effect that the present invention has is as follows: serviceability is stable, and security performance is good, and feel is good and manufacturing cost is lower; The outer periderm back cover of switch is connected encirclement with pellosil, have good seal performance, long service life, advantages such as waterproof and dustproof, preventing oil pollution.
The invention will be further described below in conjunction with specification drawings and specific embodiments.
Description of drawings
Fig. 1 is an assembly drawing of the present invention.
Fig. 2 is cross section structure figure of the present invention (under the normality).
Fig. 3 is cross section structure figure of the present invention (under the operating state).
Fig. 4 be among Fig. 2 A-A to partial sectional view.
Among the figure: 1~pellosil, 2~loam cake, 3~button, 4~shell fragment, 5~leaf spring, 6~big pin, 7~base, 8~stop key spring, 9~little pin, 10~slide block, 11~bonding wire copper sheet, 12~back cover, 13~line sheath, 14~lead, 15~silver contact, 16~turning arm, 17~pressing down section, 18~press section, 19~buckle, 20~button location hole.
Embodiment
Push-button switch shown in Fig. 1-4, base 7 and cover between the loam cake 2 on the end face thereon forward and backward two groups of buttons are housed, two groups of buttons are independent separately, and last group of button is made up of three buttons 3 that are axially-aligned, is provided with two slide blocks 10 that play linkage interlocked effect between the three; The one group of button in back is made up of two buttons 3 that are axially-aligned, is provided with a slide block 10 that plays linkage interlocked effect between the two.Described button 3 is an oscillating rod type, the U-lag that the turning arm 16 that the one end forms places base 7 madial walls to form, the other end forms the pressing down section 17 that is used with slide block, the both sides of slide block 10 respectively form an inclined-plane that is used with pressing down section 17, and the upper surface of button 3 forms manual press section 18.The below of three buttons in the middle of being positioned at (be second and third, four buttons) all is provided with shell fragment 4, semicircle leaf spring 5, big pin 6 and little pin 9, and button is enclosed within on the shell fragment, realizes the purpose with its interlock.Big pin 6 is fixed on the base 7, the inner of shell fragment 4 is inner affixed with big pin 6, be connected with leaf spring 5 between the outer end of the outer end of shell fragment 4 and big pin 6, little pin 9 is contained on the base that is positioned under the shell fragment outer end, all riveting on the outer end of shell fragment and the little pin has silver contact 15, the heel of large and small pin to be riveted on the bonding wire copper sheet 11; When three above-mentioned buttons are pressed, circuit turn-on herein.The pressing down section below of first button is provided with a stop key spring 8 direct and slide block is used, and does not play the circuit turn-on effect when pressing this button.The below of the 5th button is provided with shell fragment, leaf spring and big pin, does not rivet silver contact on the shell fragment of this button, does not play the circuit turn-on effect when pressing this button.Above-mentioned shell fragment, big pin, little pin are all L-shaped, make things convenient for the mutual connection of parts.
Have button location hole 20 on the loam cake 2 with the number of buttons coupling.Base 7 by buckle 19 with cover on its bottom surface and be connected with back cover 12 on the sidewall all around, loam cake 2 is coated with a pellosil 1, between the periphery that bound edge is embedded in loam cake around this pellosil 1 and the periphery of back cover, the lateral wall of the lateral wall of pellosil 1 and back cover 12 is fair, prevents the water inflow.The limit, one base angle of back cover 12 is provided with wire hole, and line sheath 13 is equipped with at the wire hole place, is installed with lead 14 in this line sheath 13, and the inner of lead 14 is connected with bonding wire copper sheet 11.The periphery of switch connects encirclement by back cover 12 and pellosil 1.
The course of work of the present invention is as follows: the press section of pressing button every pellosil downwards, shell fragment is moved downward, leaf spring and shell fragment interlock, leaf spring rotates around its tie point with big pin, when the tie point of leaf spring and shell fragment fell to the tie point horizontal level that is lower than leaf spring and big pin, leaf spring produced downforce to shell fragment, and shell fragment descends automatically, collide circuit turn-on until silver contact that is fixed on the shell fragment front end and the silver contact that is fixed on the little pin; By pushing other button in same group, slide block is moved, thereby the button that is in "on" position is just now moved upward, leaf spring upwards rotates around its tie point with big pin, and until resetting, this moment, two silver contacts disconnected, the not conducting of circuit at aforementioned button place.Promptly press second or three button, the circuit turn-on at this button place; Press other button of last group of push-button switch, the circuit that utilizing slides makes aforementioned button place disconnects.Press the 4th button, the circuit turn-on at this button place; Press the 5th button, the circuit at the 4th button place disconnects.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all falls within the scope of protection of the present invention any simple modification, equivalent variations and modification that above embodiment did.